central fatigue

(redirected from Blood Sugar Crash)
Mental fatigue that develops during prolonged exercise and is attributed to impaired function of the central nervous system; central fatigue may correlate with a buildup of tryptophan, causing sleepiness and mental fatigue

central fatigue

contribution of the central nervous system to the overall condition of fatigue in physical activity. Mainly significant in prolonged exercise, such as marathon running, where voluntary effort declines before muscle glycogen is exhausted and other peripheral indicators (heart rate, blood lactate, blood glucose, etc.) do not suggest particular stress. There is evidence that elevated serotonin (5-HT) and/or reduced dopamine levels in the brain are involved.
References in periodicals archive ?
It's thought of as the ultimate comfort food, but milk chocolate's high is often followed by a blood sugar crash which leaves you feeling even lower
He also suffered a blood sugar crash as he struggled to walk from his car to an appointment at the Cardiothoracic Centre.
The stories from 2003 alone run nearly 50 pages worth--a dog that saved its diabetic owner during a blood sugar crash, a stray cat that was a companion to a bed-ridden man, a rescued dog that gave her owner new hope after a divorce, a cat who cuddled another as it was dying.